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Quantification of hydrogen sulphide in humid air by selected ion flow tube mass spectrometry.
Rapid Commun Mass Spectrom. 2000; 14(13):1136-40.RC

Abstract

We report the results of a study of the reactions of H(3)O(+), NO(+) and O(2)(+.) ions with H(2)S. This study was undertaken to provide a thorough understanding of the ion chemistry required for accurate quantification of H(2)S in humid air by selected ion flow tube mass spectrometry (SIFT-MS). It shows that slow reactions occur between H(3)S(+), the primary product ions of the H(3)O(+)/H(2)S reaction, and the abundant H(2)O molecules present in humid air and breath. These reactions disturb somewhat the quantification of H(2)S by this analytical method, but the kinetic data obtained in this study facilitate precise quantification of H(2)S in humid air. This study also shows that NO(+) does not react with H(2)S, and that O(2)(+.) does react rapidly with H(2)S, but the product H(2)S(+.) ions react rapidly with H(2)O. Thus, NO(+) and O(2)(+.) cannot be used as precursor ion for analysis of H(2)S in moist air by SIFT-MS. A sample SIFT mass spectrum is shown from which H(2)S and several other volatile compounds have been quantified in a sample of cow rumen gas.

Authors+Show Affiliations

V. Cermák Laboratory, J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejskova 3, 182 23, Prague 8, Czech Republic.No affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

10867689

Citation

Spanel, P, and D Smith. "Quantification of Hydrogen Sulphide in Humid Air By Selected Ion Flow Tube Mass Spectrometry." Rapid Communications in Mass Spectrometry : RCM, vol. 14, no. 13, 2000, pp. 1136-40.
Spanel P, Smith D. Quantification of hydrogen sulphide in humid air by selected ion flow tube mass spectrometry. Rapid Commun Mass Spectrom. 2000;14(13):1136-40.
Spanel, P., & Smith, D. (2000). Quantification of hydrogen sulphide in humid air by selected ion flow tube mass spectrometry. Rapid Communications in Mass Spectrometry : RCM, 14(13), 1136-40.
Spanel P, Smith D. Quantification of Hydrogen Sulphide in Humid Air By Selected Ion Flow Tube Mass Spectrometry. Rapid Commun Mass Spectrom. 2000;14(13):1136-40. PubMed PMID: 10867689.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Quantification of hydrogen sulphide in humid air by selected ion flow tube mass spectrometry. AU - Spanel,P, AU - Smith,D, PY - 2000/6/27/pubmed PY - 2000/9/9/medline PY - 2000/6/27/entrez SP - 1136 EP - 40 JF - Rapid communications in mass spectrometry : RCM JO - Rapid Commun Mass Spectrom VL - 14 IS - 13 N2 - We report the results of a study of the reactions of H(3)O(+), NO(+) and O(2)(+.) ions with H(2)S. This study was undertaken to provide a thorough understanding of the ion chemistry required for accurate quantification of H(2)S in humid air by selected ion flow tube mass spectrometry (SIFT-MS). It shows that slow reactions occur between H(3)S(+), the primary product ions of the H(3)O(+)/H(2)S reaction, and the abundant H(2)O molecules present in humid air and breath. These reactions disturb somewhat the quantification of H(2)S by this analytical method, but the kinetic data obtained in this study facilitate precise quantification of H(2)S in humid air. This study also shows that NO(+) does not react with H(2)S, and that O(2)(+.) does react rapidly with H(2)S, but the product H(2)S(+.) ions react rapidly with H(2)O. Thus, NO(+) and O(2)(+.) cannot be used as precursor ion for analysis of H(2)S in moist air by SIFT-MS. A sample SIFT mass spectrum is shown from which H(2)S and several other volatile compounds have been quantified in a sample of cow rumen gas. SN - 0951-4198 UR - https://www.unboundmedicine.com/medline/citation/10867689/Quantification_of_hydrogen_sulphide_in_humid_air_by_selected_ion_flow_tube_mass_spectrometry_ L2 - https://doi.org/10.1002/1097-0231(20000715)14:13<1136::AID-RCM998>3.0.CO;2-R DB - PRIME DP - Unbound Medicine ER -
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